William a



(No Model.)

W..A. PENFIBLD. LAMP BURNER.

Patented Dec. 31, 1895.

W 11 3 I 1 I .uppcr and lower edges thereof.

UNiTED STATES PATENT OFFICE.

IVILLIAM A. PENFIELD, OF MERIDEN, CONNECTICUT, ASSIGNOR TO THE BRADLEY &HUBBARD MFG. 00., OF SAME PLACE.

LAM P-BURN ER.

SPECIFICATION forming part of Letters Patent No. 552,327, dated December31, 1895.

Application filed February 4, 1895. Serial No. 537,208. (No model.)

To a whom it may concern.-

Be it known that I, WILLIAM A. PENFIELD, of Meriden, in the county ofNew Haven and State of Connecticut, have invented a new Improvement inLamp -Burners; and I do hereby declare the following, when taken inconnectionwith the accompanying drawings locking it in its elevatedposition by the supporting-pin; Fig. 3, a similar but less comprehensiveview showing the gallery in its elevated and locked position; Fig. 4, adetached view, in side elevation, of the bearing-ring; Fig. 5, adetached broken view showing the upper end of the outer wick-tube; Fig.6, a detached plan view of the bearingring in the size employed for theburners of Mammoth lamps. I

My invention relates to an improvement in that class of Argand orcentral-draft lampburners in which the burner-gallery is adapted to beraised for applying a lighted taper to the .wick without removing thechimney, and to be locked in its elevated position, the object being toproduce at a low cost of manufacture a simple, durable, andconvenientlyoperated burner of the type described.

with these ends in view my invention consists in a lamp-burner havingcertain details of construction and combinations of parts, as will behereinafter described, and pointed out in the claims.

In carrying out my invention I form an integral verticaloutwardly-projecting hollow rib or flute A in the bearing-rin g B, whichisa trifle larger in internal diameter than the external diameter of theouter wick-tube C,upon which it slides up and down and rotates, the saidhollow rib or flute extending throughout thewidth of the ring B andintersecting the The said bearing-ring B is connected withsupportingarms I), forming continuations of the spring chimney-holdingfingers D of the vertically movable and rotatable burner gallery E,which, in its depressed position, rests upon the upper edge of theburner-body F, the lower edge of which is bent inward and rigidlysecured to the lower end of the outer wick-tube C. I do not limitmyself, however, to any particular construction of the gallery,burner-body or outer wick-tube, or to any particular means of connectingthe bearingringB with the gallery. Of course the supporting-arms D maybe varied in form, and, if desired, may be made independent of thechimney-holding fingers D. The bearingring B, it will be understood,supports and steadies the gallery as it is moved up and down. WVhen thegallery is in its elevated position, as shown in Fig. 2, it is apparentthat a lighted taper may be inserted between its lower edge and theupper edge of the burner-body for lighting the wick. For supporting thegallery in its elevated position I form a short locating-notch a in thelower edge of the ring B in such a position that the inner end of thenotch, which is arranged horizontally, intersects the lower end of thehollow outwardly projecting rib A. This notch receives a supporting-pinor projection 0, located in the outer wick-tube C at such a distancebelow the upper end thereof that when the ring is raised on the tube tothe height required for the convenient application under the gallery ofa lighted taper to the wick the said pin will be in line with the innerend of the notch a, the said end intersecting, as before described, theextreme lower end of the hollow rib A. If now the gallery and itsbearing-rin g are slightly rotated from right to left, the pin 0 willemerge from the lower end of the rib into the notch, the upper wall ofwhich will engage with the pin, as shown in Fig. 3, in such a mannerthat the pin will then support the gallery in its elevated position.Then to restore the gallery to its normal position it is rotated for adistance represented by the length of the notch from left to right,whereby the pin will be brought into line with the lower end of thehollow rib or flute, which will clear the pin and permit the gallery todescend to its normal position, in which it is supported by the upperedge of the burner-body F. As herein shown, the outer wick-tube O isprovided with two additional pins 0 and c located below the pin 0 and inline therewith and coacting with the flute or rib to prevent the galleryfrom being rotated in its depressed position when the upper edge of thebearing-ring lies below the pin 0, which does not, therefore, assist inrestraining the rotat-ion of the gallery. If desired, the bearingringmight be made broad enough so that in the depressed position of thegallery the pin a would be available for holding it against rotation;but the use of the pins 0 0 answers the same purpose and is cheaper. Ifdesired, the pins 0 and 0 might be replaced by a rib applied to orstruck out from the tube 0. If desired, also, the pin 0 might bereplaced by a projection struck out from the tube 0.

For preventing the gallery from being lifted too high and accidentallyremoved from the outer wick-tube, which might involve the dropping ofthe lamp in case the same was carelessly lifted by grasping the galleryportion of the burner, I form a short locatingnotch a in the upper edgeof the ring B on the opposite side of the hollow rib or flute A from thenotch a aforesaid, the inner edge of the notch a. intersecting theextreme upper end of the said rib or flute in the same manner that theinner edge of the notch a intersects the flute. This notch a coacts witha stop-pin 0 mounted in the outer wick-tube at a point above thesupporting-pin c and laterally separated therefrom by a distancecorresponding to the distance through which the gallery may be rotated.In the normal adjustment of the burner-that is to say, when the galleryis in its depressed position-the stop-pin c is in line with the loweredge or wall of the notch a, while at the same time the supporting-pin cand also the pins 0 and c are located in line with the hollow rib orflute A. The stop-pin c and the pins 0 and 0 will not now interfere withthe lifting of the gallery; but when the gallery has reached apredetermined elevation the stop-pin 0 will be engaged with the loweredge of the notch a, as shown in Fig. 2, and the gallery firmly held, sothat it can neither be lifted higher nor removed from the lamp withoutrotating it. If it is desired to lock the gallery in this position, itis rotated from left to right, whereby the stop-pin c is caused to enterthe upper end of the rib A, and the supporting-pin 0 brought into linewith the upper wall of the notch a, as shown in Fig. In

this position of the gallery it is supported against depression by itsweight and the weight of the chimney; but if it is lifted it will beremoved from the outer wick-tube, in asmuch as the stop-pin c is nowinline with the hollow rib A. But perhaps the most important function ofthe stop-pin is to check the lifting of the gallery and bearing-ring inthe position for their rotation to lock them in their elevated position,for the use of the stoppin relieves the operator of gaging the liftingof the gallery or burner preparatory to looking it in its elevatedposition, and makes the operation of the burner very convenient.

I have described the bearing-ring as being provided with only one setflute or rib, and the outer wick-tube as being provided with only oneset of pins; but by preference I employ two corresponding ribs and setsof pins. As shown in Fig. 6 the ring is provided with two ribs, whichare located opposite each other.

I would haveit. understood that I do not limit myself to the exactconstruction shown and described, but hold myself at liberty to makesuch changes and alterations as fairly fall within the spirit and scopeof my invention.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is'- 1. In a central-draft lamp-burner, thecombination with the gallery, outer wick-tube and burner-body thereof,of a bearings-ing connected with and depending from the gallery, andadapted to ride'up and down and be rotated upon the outer wick-tube, andconstructed with an integral outwardly projecting hollow rib or fluteintersecting its upper and lower edges, and with a short locating notch.formed in and parallel with the lower or go of the ring and at its inneredge intersecting the lower end of the rib or flute; and an outwardprojection located in the tube and eoacting with. the said notch. andrib or flute, substantially as described.

2. In a central-draft lamp-burner of the Argan'd type, the combinationwith the gallery, outer wick-tube and burner thereof, of a bearing-ringdepending from and connected with the gallery, and adapted to ride upand down and be rotated upon the outer wicktube, and constructed with avertically arranged, integral, hollow rib or flute intersecting itsupper and lower edges, and further constructed with two short locatingnotches located in and parallel with its upper and lower edges, onopposite sides of the rib or flute respectively and at their inner endsintersecting the same; a supporting projection located in the outerwick-tube and co-operating with the lower notch, and a stop projectionalso located in the outer wick-tube but in a different vertical planefrom the said supporting projection and co-operating with the uppernotch, substantially as described.

3. In a central-draft lamp-burner, the combination with the gallery,outer wick-tube and burner-body, of a bearing-ring depending from thegallery and adapted to ride up and down and be rotated upon the outerwicktube, and constructed with a vertically arranged integral, hollowrib or flute intersecting its upper and lower edges, and with a shortlocating notch formed in and parallel with its lower edge andintersecting at its inner end the lower end of the rib or flute; and twoor more stop projections located in the same Vertical line 011 the outerwick-tube the upper stop projection coacting with the said rib and notchand the lower stop projection 01' projections coaeting with the rib,substantially as described.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

WILLIAM A. PENFIELD.

Witnesses:

(J. D. NEWBURY, ,W. R. Boo'rH;

